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Current issue   Ukr. J. Phys. 2016, Vol. 61, N 2, p.98-106
doi:10.15407/ujpe61.02.0098    Paper

Zhovtyansky V.A.1, Anisimova O.V. 2

1 Gas Institute, National Academy of Sciences of Ukraine
(39, Degtyarivs’ka Str., Kyiv 03113, Ukraine; e-mail: zhovt@ukr.net)
2 National Technical University of Ukraine “Kyiv Polytechnic Institute”
(37, Peremoga Ave., Kyiv 03056, Ukraine)

Role of Anode Processes in Glow Discharge Energetics

Section: Plasmas and Gases
Original Author's Text: Ukrainian

Abstract: The role of anode processes in the formation of self-organized glow discharge (GD) structure is analyzed in the case of spherical diode, the latter, as well as a short plane diode, being characterized by the absence of a positive column. The results of numerical calculations are compared with the experimental GD current-voltage characteristics and the electric field strength distributions measured by the probe method. It is shown that the boundary conditions at the anode should be formulated with regard for a possibility of a potential drop at the anode. In this case, the calculated diode potential decreases significantly and corresponds to experimentally observed results.

Key words: glow discharge, spherical diode, short diode, electric field, anode processes, fluid model, current-voltage characteristics.

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